GARY S GUTHART

CIK 1280628 · Executive Chair of the Board o · last filed 2026-08-12

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$464.23M

Companies

3

Total Filings

140

Lifetime Open-Market Net

-$409.91M

Filer Profile

Reported Address
C/O INTUITIVE SURGICAL INC
1020 KIFER RD
SUNNYVALE, CA 94086
Related Filers
ILLUMINA, INC. — 12 joint filings, latest 2025-05-23
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ISRG Director 1,256,193 $366.70 $460.65M -$409.91M 104 2026-08-12
ILMN Director 16,430 $218.22 $3.59M $0 10 2025-05-23
AFFYMETRIX INC (AFFX) Delisted Director 0 $0 8 2016-04-01

Recent Filings · Page 7 of 14

140 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2020-12-10 ISRG Mixed −9,714 -$10.51M EDGAR
2020-08-31 ISRG Grant (A) $0 EDGAR
2020-05-28 ILMN Grant (A) +963 $0 EDGAR
2020-05-06 ISRG Mixed +8,445 -$8.33M EDGAR
2020-03-03 ISRG Grant (A) $0 EDGAR
2020-02-19 ISRG Mixed +4,053 $0 EDGAR
2020-02-06 ISRG Mixed +9,642 -$9.19M EDGAR
2019-12-09 ISRG Mixed +7,498 -$9.40M EDGAR
2019-08-19 ISRG Grant (A) $0 EDGAR
2019-05-30 ILMN Grant (A) +1,298 $0 EDGAR
Showing 6170 of 140
Page 7 of 14
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.